Microsoft's Latest Web Stumble: Kevin Johnson Out — Kevin Johnson (pictured here), the point person for Microsoft's failed bid to buy Yahoo, is leaving the company to run Juniper Networks. — As the president of its Platform and Services Division, the smooth Johnson has been trying …

Microsoft's Johnson Heads to Juniper — The head of Microsoft Corp.'s online business, who led the company's bid to buy Yahoo Inc., is leaving the software giant to run Juniper Networks Inc., according to people familiar with the situation. — The departure of Kevin Johnson …

Microsoft exec who led Yahoo buyout team to leave — Kevin Johnson, key in Yahoo bid, to depart as Microsoft splits Windows, online divisions — SEATTLE (AP) — Microsoft Corp. on Wednesday said Kevin Johnson, the executive in charge of its Windows and Web operations and an instrumental player …

Knol is open to everyone — A few months ago we announced that we were testing a new product called Knol. Knols are authoritative articles about specific topics, written by people who know about those subjects. Today, we're making Knol available to everyone.

Google's Knol Launches: Like Wikipedia, With Moderation — After six months of testing, Google has formally rolled out Knol, a service designed to let people create pages of knowledge on any topic they choose. While Google says Knol is not designed to compete with Wikipedia …

Liveblogging the Facebook Developer Conference — The TechCrunch team is on site at the Facebook Developer conference, and we'll be live blogging the news. Mark Zuckerberg's Keynote starts at 1:30 pm PST. — Facebook's press release is here. — Live Coverage

BlackBerry Kickstart 8220 Hands-On Hardware Review — The Web's First Review of the BlackBerry KickStart 8220. — Grab a cup of coffee, sit back and relax! It's time for another hands-on review of a yet to be officially announced or released BlackBerry smartphone.

Why We Still Need the iPhone App Black Market — A year ago, we said that no iPhone SDK meant no killer apps. It came, and the apps are here in staggering numbers. But many of the amazing apps and concepts we grew to love as unofficial apps aren't here, and only about 100 of the 900+ apps …

Apple's MobileMe Is Far Too Flawed To Be Reliable — People who work for large corporations are used to having their email, contacts and calendar appointments synchronized instantly among their various computers and smart phones. But average consumers haven't had an easy way to do that.

A Xobni Executive Leaves The Red-Hot Startup. But Why? — Xobni, the Y Combinator email startup that turned down an acquisition offer from Microsoft earlier this year, has just lost its VP Engineering and first employee, Gabor Cselle. Cselle joined the company in March 2007 …

Hackers start to target Apple Macs — As more and more PC users switch to Macs, they're bringing viruses and other malicious software with them — When Apple beat Wall Street expectations convincingly on Monday after its best quarter ever, its share price fell.

Why Apple and China are Simply Incompatible — The Beijing Olympics begin in two weeks. But for Apple, the China games have already begun. The company opened a shiny new Apple store in Beijing Saturday — the “first of many” in China, according to an Apple official. The race is on.

3G iPhone Availability — DISCLAIMER: This page uses data from Apple's site that is retrieved every 15 minutes. — However, it does appear that Apple only updates the data every night at midnight PDT. — I strongly advise calling your local Apple store to check inventory before visiting said store.

2018 Top 100 Global Tech Leaders — 21st century technology-sector leadership requires more than financial success. It also requires a commitment to compliance, innovation, and much more. Who are today's leaders?